U need find hex codes for this,example king kong and etc.U can find several working hex codes on this forum
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Code for DLC'S
The 80's Suitcase: 35 33 30 37 31 30
Charity Case: 36 32 37 35 31 30
Headcase: 35 37 37 39 30 31
Bloodletting: 36 33 39 37 31 30